106503404 has 48 divisors (see below), whose sum is σ = 220401216. Its totient is φ = 44083200.

The previous prime is 106503373. The next prime is 106503421. The reversal of 106503404 is 404305601.

It is a happy number.

It is a super-2 number, since 2×106503404² = 22685950127174432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106503404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129314 + ... + 130134.

It is an arithmetic number, because the mean of its divisors is an integer number (4591692).

Almost surely, 2^106503404 is an apocalyptic number.

106503404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 106503404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110200608).

106503404 is an abundant number, since it is smaller than the sum of its proper divisors (113897812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106503404 is a wasteful number, since it uses less digits than its factorization.

106503404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 106503404 is about 10320.0486432962. The cubic root of 106503404 is about 474.0103554266.

The spelling of 106503404 in words is "one hundred six million, five hundred three thousand, four hundred four".